я сделал код который прнимает несколько потоков и делает из них multi view
в данном случаи показана часть лога для 4 потоков с камер в разных частях здания (потоки можно отличить по цифрам [505])
2022-12-13 02:43:27.986 info [505] --- : Receiver connection status changed.
2022-12-13 02:43:28.768 info [505] --- : Channel 0 is receiving video at 59.149395ffps.
2022-12-13 02:43:31.415 info [457] --- : Channel 0 is receiving video at 33.086918ffps.
2022-12-13 02:43:32.014 info [452] --- : Channel 0 is receiving video at 30.078526ffps.
2022-12-13 02:43:32.120 info [505] --- : Channel 0 is receiving video at 59.667934ffps.
2022-12-13 02:43:32.990 info [505] --- : Receiver connection status changed.
2022-12-13 02:43:33.056 info [466] --- : Receiver connection status changed.
2022-12-13 02:43:35.471 info [505] --- : Channel 0 is receiving video at 59.68681ffps.
2022-12-13 02:43:37.534 info [457] --- : Channel 0 is receiving video at 32.685978ffps.
2022-12-13 02:43:38.187 info [505] --- : Receiver connection status changed.
2022-12-13 02:43:38.249 info [466] --- : Receiver connection status changed.
2022-12-13 02:43:38.714 info [452] --- : Channel 0 is receiving video at 29.849714ffps.
2022-12-13 02:43:38.826 info [505] --- : Channel 0 is receiving video at 59.61486ffps.
2022-12-13 02:43:42.185 info [505] --- : Channel 0 is receiving video at 59.53062ffps.
2022-12-13 02:43:43.186 info [505] --- : Receiver connection status changed.
2022-12-13 02:43:43.458 info [466] --- : Receiver connection status changed.
2022-12-13 02:43:43.694 info [457] --- : Channel 0 is receiving video at 32.466408ffps.
2022-12-13 02:43:45.414 info [452] --- : Channel 0 is receiving video at 29.8547ffps.
2022-12-13 02:43:45.533 info [505] --- : Channel 0 is receiving video at 59.7366ffps.
2022-12-13 02:43:48.386 info [505] --- : Receiver connection status changed.
2022-12-13 02:43:48.454 info [466] --- : Receiver connection status changed.
2022-12-13 02:43:48.940 info [505] --- : Channel 0 is receiving video at 58.70607ffps.
2022-12-13 02:43:49.597 info [457] --- : Channel 0 is receiving video at 33.882202ffps.
2022-12-13 02:43:52.125 info [452] --- : Channel 0 is receiving video at 29.79798ffps.
2022-12-13 02:43:52.239 info [505] --- : Channel 0 is receiving video at 60.625294ffps.
2022-12-13 02:43:53.448 info [466] --- : Receiver connection status changed.
2022-12-13 02:43:53.583 info [505] --- : Receiver connection status changed.
2022-12-13 02:43:55.455 info [457] --- : Channel 0 is receiving video at 34.141876ffps.
2022-12-13 02:43:55.593 info [505] --- : Channel 0 is receiving video at 59.634636ffps.
2022-12-13 02:43:58.454 info [466] --- : Receiver connection status changed.
2022-12-13 02:43:58.786 info [505] --- : Receiver connection status changed.
2022-12-13 02:43:58.813 info [452] --- : Channel 0 is receiving video at 29.904644ffps.
2022-12-13 02:43:58.951 info [505] --- : Channel 0 is receiving video at 59.55274ffps.
из за разной загруженности сети, разного разрешения камер и загруженности CPU fps меняеться
подскажите пожалуйста как можно синхронизировать вывод потоков в multiview
моя начальная идея была запомнить time stamp первого принятого кадра с каждой камеры, использовать его как base time и синхронизировать по ним кадры выводимы на экран
с другой стороны разница небольшая в среднем 0.2 и возможно ее можно проигнорировать